Fe isotopic composition in continental iron cycle (Table 1), supplement to: Fantle, Matthew S; DePaolo, Donald J (2004): Iron isotopic fractionation during continental weathering. Earth and Planetary Science Letters, 228(3-4), 547-562

Matthew S Fantle & Donald J DePaolo
The effect of continental weathering on the iron isotope compositions of natural materials is investigated. Unweathered igneous rocks, pelagic clay, and dust fall within the range delta56Fe=0 +/- 0.3 per mil. Rivers with large suspended loads also have delta56Fe values near zero. Dilute streams have delta56Fe values that trend towards lower delta56Fe (~-1) suggesting that dissolved riverine iron is isotopically light relative to igneous rocks. Bulk soil and soil leaches display systematically different delta56Fe profiles,...
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